Finding the Fourth Proportional to 56,256.88, 77,634.30 and 31,106.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,256.88 : 77,634.30 = 31,106.38 : x
2. Step 2: Convert to fraction form
   56,256.88/77,634.30 = 31,106.38/x
3. Step 3: Cross multiply
   56,256.88x = 77,634.30 × 31,106.38
4. Step 4: Simplify right side
   56,256.88x = 2,414,922,036.83
5. Step 5: Solve for x
   x = 2,414,922,036.83/56,256.88
6. Step 6: Final answer
   x = 42,926.70